While all SP1 packages are available for download from Microsoft Updates, you can also download and install the following service packs for each product that you have installed from Microsoft Download Center.

Anand Khanse is the Admin of TheWindowsClub.com, a 10-year Microsoft MVP Awardee in Windows (2006-16) & a Windows Insider MVP. Please read the entire post & the comments first, create a System Restore Point before making any changes to your system & be careful about any 3rd-party offers while installing freeware.